3,5-Difluoropyridine

ChemicalBook > CAS DataBase List > 3,5-Difluoropyridine

3,5-Difluoropyridine

Synthesis

Product Name: 3,5-Difluoropyridine
CAS No.: 71902-33-5
Chemical Name: 3,5-Difluoropyridine
Synonyms: 3,5-Difluropyridine;3,5-DIFLUOROPYRIDINE;Pyridine, 3,5-difluoro-;3,5-Difluoropyridine>3,5-Difluoropyridine98%;3,5-Difluoropyridine 98%;3,5-Difluoropyridine ISO 9001：2015 REACH
CBNumber: CB4751533
Molecular Formula: C5H3F2N
Formula Weight: 115.08
MOL File: 71902-33-5.mol

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3,5-Difluoropyridine Property

Boiling point:: 92-93°C
Density: 1.256 g/mL at 25 °C
refractive index: 1.4437
Flash point:: 9°C
storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
form: clear liquid
pka: 0.39±0.20(Predicted)
color: Colorless to Almost colorless
BRN: 7914363
InChIKey: WRXAZPPGFLETFR-UHFFFAOYSA-N
CAS DataBase Reference: 71902-33-5(CAS DataBase Reference)

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Safety

Hazard Codes: Xi,F,N,Xn
Risk Statements: 36/37/38-50-20/21/22-11
Safety Statements: 26-36/37/39-61-36/37
RIDADR: 1993
WGK Germany: 3
Hazard Note: Highly Flammable/Irritant
HazardClass: 3
PackingGroup: II
HS Code: 29333990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

H400Very toxic to aquatic life

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 703923
Product name: 3,5-Difluoropyridine
Purity: 97%
Packaging: 5g
Price: $167
Updated: 2023/06/20

TCI Chemical

Product number: D4038
Product name: 3,5-Difluoropyridine
Purity: >98.0%(GC)
Packaging: 1g
Price: $21
Updated: 2024/03/01

TCI Chemical

Product number: D4038
Product name: 3,5-Difluoropyridine
Purity: >98.0%(GC)
Packaging: 5g
Price: $81
Updated: 2024/03/01

Alfa Aesar

Product number: L19539
Product name: 3,5-Difluoropyridine, 98%
Packaging: 1g
Price: $52.65
Updated: 2024/03/01

Alfa Aesar

Product number: L19539
Product name: 3,5-Difluoropyridine, 98%
Packaging: 5g
Price: $162.65
Updated: 2024/03/01

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3,5-Difluoropyridine Chemical Properties,Usage,Production

Synthesis

Hydrogenolysis of 2,4,6-tribromo-3,5-difluoropyridine occurred rapidly giving quantitative conversion to 3,5-difluoropyridine (5), with an isolated yield by distillation of 63%.

Chemical Properties

Liquid

Preparation

Synthesis of 3,5-Difluoropyridine: A solution of 2,4,6-tribromo-3,5-difluoropyridine (11) (34.0 g, 97 mmol) in DCM (200 cm3) was washed with activated carbon and filtered. A palladium catalyst (3.4 g of a 5% Pd/C commercially available product) and triethylamine (45 cm3, 31.5 g, 312 mmol) were added to the filtrate and the mixture hydrogenated in a Parr apparatus at 4 Bar for 21 h. The mixture was filtered, water (200 cm3) added and extracted into DCM. Distillation of the DCM solution on Fischer-Spaltrohr apparatus gave 3,5-difluoropyridine (7.0 g, 61 mmol, 63%), b.p. 92.5 ·c (Found: C, 52.2; H, 3.0; N, 12.2. C5H3F2N2 requires C, 52.2; H, 3.0; N, 12.2%);
IR spectrum no. 1; mass spectrum no. 1; nrnr spectrum no. 8.

3,5-Difluoropyridine Preparation Products And Raw materials

Raw materials

Pentafluoropyridine Diethyl ether Lithium Aluminum Hydride

Preparation Products

3,5-DIFLUORO-PYRIDIN-4-YLAMINE

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View Lastest Price from 3,5-Difluoropyridine manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: 3,5-Difluoropyridine 71902-33-5
Price: US $1.10/g
Min. Order: 1g
Purity: 99.0% min
Supply Ability: 100 tons min
Release date: 2021-05-26

Career Henan Chemical Co

Product: 3,5-Difluoropyridine 71902-33-5
Price: US $3.00/KG
Min. Order: 1KG
Purity: 90%-99.9%
Supply Ability: 500kg
Release date: 2019-07-04

71902-33-5, 3,5-DifluoropyridineRelated Search:

DIPIPERIDINOMETHANE 2,6-Lutidine 2,5-PYRIDINEDICARBOXYLIC ACID Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate 2,3,5,6-Tetrafluoropyridine 2 3 5 6-TETRAFLUORO-4-METHYLPYRIDINE 9& 2,3-DIFLUOROPYRIDINE 2,5-DIFLUOROPYRIDINE 2,3,5,6-TETRAFLUORO-4-PYRIDINE-CARBONITRILE 4-(DIMETHYLAMINO)-2,3,5,6-TETRAFLUOROPYRIDINE 4-AMINO-2,3,5,6-TETRAFLUOROPYRIDINE Pentafluoropyridine 2,6-DIFLUOROPYRIDINE 3,4-DIBROMO-2-FLUOROPYRIDINE 5,6-Difluoropyridine-2-carboxylic acid 2,6-DIBROMO-3,5-DIFLUOROPYRIDINE-4-CARBOXYLIC ACID 2,6-DIFLUOROPYRIDINE-3-BORONIC ACID HYDRATE 2,4-DIFLUORO-PYRIDINE

3,5-DIFLUOROPYRIDINE

3,5-Difluoropyridine 98%

3,5-Difluoropyridine98%

3,5-Difluropyridine

3,5-Difluoropyridine&gt

Pyridine, 3,5-difluoro-

3,5-Difluoropyridine ISO 9001：2015 REACH

71902-33-5

C5H3NF2

Fluorine series

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Halides

Pyridines

Pyridine

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